Hello here is the download page:https://downloadcenter.intel.com/SearchResult.aspx?lang=eng&ProductFamily=Desktop+Boards&ProductLine=Intel%C2%AE+3+Series+Chipset+Boards&ProductProduct=Intel%C2%AE+Desktop+Board+DG31PRHere is a youtube video how to change the boot order:
http://www.youtube.com/watch?v=yrk0t8IuY88In the BIOS Setup program, the user can choose to boot from a hard drive, optical drive, removable drive, or the network. The default setting is for the optical drive to be the first boot device, the hard drive second, removable drive third, and the network fourth.Remember to save your settings, when leaving the bios.If the boot order change when you power off, the cmos battery must be renewed:
The battery is a watch type Cr 2032, and cost a few dollars.Remember to place the new battery, as shown on the picture.Good luck